Pulverizer.



M. J. WILLIAMS.

PULVERIZER. I APPLICATION FILED PEBJG. 1909.

Patented Nov. 9, 1909.

7 Inventor:

Milboniwilliafm bY AUJ'Y.

S 6 w 6 H mm W To all whom it may concern:

MILTON J WILLIAMS, OF CHICAGO, ILLINOIS.

PULVERIZER.

Specification of Letters Patent.

Patented Nov. 9,1909.

Application filed February 16, 1909. Serial No. 478,219.

Baitknown that I, METON J. WILLIAMS, a citizenv of the United States, residing at Chicago, Illinois, newand useful Improvementin Pulverizers, of which the following is a full, clear, and exact description, such as will enable others skilled in the art to which it appertains to make and use the same, reference .being bad to the accompanying drawings, forming part of this specification, in which Figure 1 is a vertical sectional view through a pulverizer constructed according to my improvement. Fig. 2 is a horizontal,

fragmentary sectional view through the same.

This invention relates to a new and useful improvement in pulverizers of that type commercially known as the Willams mills characterized by the pivoted revolving hammers which act upon the material as it enters the machine at the hopper or feed end thereof, crushing said material as it rests upon the bottom of the hopper, or breaker plate, as -it is sometimes called, the material being further disintegrated or crushed by the hammers acting thereon as the material is carried over the cage or grinding surface. The crushed material falls through the openings in the cage or grinding surface into a suitable receptacle located beneath the machine. The hammers or heaters which revolve about the shaft, while made of amaterial whose resistance to wear is its essential quality, will, intime,

wear away at their striking ends, and the farther these striking ends are removed from the breaker plate and, grinding surface, the less becomes the capacity of the machine.

It is the purpose of my present invention to provide means whereby these revolving hammers or-beaters may be adjusted outwardly to take up this wear (or inwardly, if occasion requires, as when a new cage is introduced to replace a worn one), said means consisting of a longitudinally movable ele ment having-dovetailed grooves in which hammer supports are engaged whereby said hammers may be simultaneousl and uniformly adjustedoutwardly and lnwardly to r compensate for wear.

In the drawings, 1 indicates the casing, 2 the breaker plate, 3 the grindin surface or cage, and 4 the. cover of'the mac ine, which may or may not be hung, as desired.

5 is a shaft mounted in the casing, 011' the have invented a certain end of which ,are the pulley and balance wheel, not shown.

6 indicates disks for supporting guide bars 7, said guide bars having radially disposed slots in which are mounted hammer supports 8. The inner ends of these hammer supports are provided with lateral projections or shoulders which cotiperate with longitudinally disposed T shaped grooves in a cone 9 slidingly mounted on shaft 5. Cone 5) is provided with threaded rods 10 which pass through one of the disks 6 and also through a plate 11, nuts 12 on each side of said plate adjusting the cone longitudinally the shaft and positlvely moving the hammer supports inwardly and outwardly, depending upon the direction of movement of said cone. The outer ends of the hammer supports carry a pivot bolt 13 on which are mounted the hammers 14.

I am aware that minor changes in the construction, arrangement and combination of the several parts of my device can be made and substituted for those herein shown and described without in the least departing from the nature and principle of my invention.

In using the expression disks in the foregoing specification and'in the following claims, I wish to be understood as not confining myself to circular disks, as the parts which erform' the functions of the supporting dis s described and claimed could be in the shape of spider-arms, or other forms, metal being cut away at various places, where it was not needed, to lighten the machine.

Having thus described my invention, what I claim is:

1. In a pulverizer, the combination with a casing, of a shaft mounted therein, a cyl1ndrical frame fixed on the shaft, a series of rows of hammer supports arranged to slide in said frameand to move radially with respectto the shaft, revolving hammers pivotally mounted on the outer ends of the hammer supports, the inner ends of which hammer supports are T shaped, an ad ustable cone on the shaft within the frame and which cone is provided with T shaped grooves which receive the inner ends of the hammer sup orts.

2. In a pn verizer, the combination Wli-h a casing, of a shaft mounted therein, hammer supports movable radially with respect to said shaft, revolving hammers pivotally carried by said supports, the inner ends of said supports being provided with lateral pro-' j'ections, and a cone moving longitudinally the shaft, said cone having T shaped grooves for engagement with the hammer supports.

3. In a pulverizer, the combination with a. casing, of a shaft mounted therein, disks mounted on said shaft, guide bars supported by said disks, radially movable hammer supports mounted in said guide bars, hammers pivotally mounted on the outer ends of said supports, a longitudinally movable element mounted 'on the shaft between the disks andhaving interlocking engagement with the inner ends of said hammer supports to force them inwardly and outwardly, and means for moving said element longitudinally-of the shaft, said means securing said element in its adjusted positions.

4. In a pulverizer, the combination with a casing, of a shaft mounted therein, a frame fixed on said shaft a plurality of rows-of hammer supports arranged to slide in the frame, the mner ends of said supports being provided with lateral projections, re-

volving hammers pivotally mounted on the.

outer portions of said supports, a cone .arranged for longitudinal movement on the shaft, in which cone are formed grooves MILTON J. WILLIAMS.

WVitnesses lVILLIS MELYILLE, REINHOLD E. WINTER. 

